From 763cf0d9819b57d266c16face6ecd4727a161aa9 Mon Sep 17 00:00:00 2001
From: ibuler <ibuler@qq.com>
Date: Thu, 19 Apr 2018 16:35:38 +0800
Subject: [PATCH] =?UTF-8?q?[Bugfix]=20=E4=BF=AE=E5=A4=8D=E8=A7=A3=E5=AF=86?=
 =?UTF-8?q?None=E7=9A=84bug?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 apps/common/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/common/utils.py b/apps/common/utils.py
index 5de10b129..d73c094ec 100644
--- a/apps/common/utils.py
+++ b/apps/common/utils.py
@@ -72,6 +72,8 @@ class Signer(metaclass=Singleton):
         return s.dumps(value)
 
     def unsign(self, value):
+        if value is None:
+            return value
         s = JSONWebSignatureSerializer(self.secret_key)
         try:
             return s.loads(value)